Today I went out and tried the new Hornady FPB bullets in my CVA Optima Pro muzzleloader. OMG I could not believe how hard they were to load down the barrel! Even after cleaning between shots, they were impossible to load! I finally gave up on them, and went back to my Powerbelt Platinum bullets! They loaded so much easier, and were more accurate than the Hornadys! I guess you live and learn!